How much does Mii Engineering Limited make?

Mii Engineering Limited reported revenue of £48m and £1.4m profit in the year to 31 Jan 2025, according to its accounts filed at Companies House.

How many employees does Mii Engineering Limited have?

Mii Engineering Limited reported an average of 392 employees in the year to 31 Jan 2025.

Is Mii Engineering Limited profitable?

Yes — Mii Engineering Limited reported a profit of £1.4m in the year to 31 Jan 2025.

Company No. 06806614 · Incorporated 30 Jan 2009

Mii Engineering Limited

Registered name: MII ENGINEERING LIMITED

Part of Mii Trustee Limited group

Mii Engineering Limited made £48m revenue and £1.4m profit in the year to 31 Jan 2025. read from filing text

Mii Engineering Limited’s revenue fell 10% to £48m in the year to 31 Jan 2025, with £1.4m profit and 392 employees. The company is classified under “engineering related scientific and technical consulting activities” and is based in Caerphilly; we hold 2 years of its filed accounts.

Full P&L filedSection M · Professional, scientific and technical activitiesSIC 71122Engineering related scientific and technical consulting activities

Status: Active
Location: Caerphilly, Wales
Age: 17 yrs · since 2009
Type: Private Limited Company

Part of a group. The filing indicates this company sits within a group structure, so its results may depend on intra-group trading and it may be hard to replicate independently. From the filing: “Throughout the year the”

Latest accounts · year to 31 Jan 2025

Key figures

Capital-lightCash flow filed

Revenue

£48m

Growth ▼9.6%

Profit

£1.4m

Growth ▲442.5%

Profit margin

Gross 15.5%

Employees

392

Change ▼23.1%

Profit / employee

£3.6k

Revenue/employee £123k

Profitable streak

2yrs

Consecutive profitable years in our data

Badges are automated estimates derived from the filed figures — not statements of fact about the company.

2 filed years

Financial history

Multi-year financials, oldest to newest
Year to	31 Jan 2024	31 Jan 2025
Disclosure	Full P&Lread from filing text	Full P&Lread from filing text
Profit & loss
Revenue (turnover)	£53.1m	£48m
Cost of sales	£45.8m	£40.6m
Gross profit	£7.3m	£7.4m
Operating profit	£719k	£1.9m
Profit before tax	£550k	£1.7m
Profit after tax	£262k	£1.4m
Profit (best available)	£262k	£1.4m
Staff costs	£26.3m	£24.5m
Employees (average)	510	392
Ratios
Profit margin	0.5%	3%
Gross margin	13.8%	15.5%
Revenue per employee	£104k	£123k
Profit per employee	£514	£3.6k
Cash conversion	−82.8%	−40.5%
Growth (year on year)
Revenue growth	—	▼9.6%
Profit growth	—	▲442.5%
Headcount growth	—	▼23.1%
Balance sheet — indirect signals, not revenue
Cash at bank	£929k	£1m
Net assets	£4.8m	£6.2m
Fixed assets	£294k	£296k
Debtors	£14.4m	£10.3m
Deferred income	£1.3m	£629k
Cash from operations	−£595k	−£753k
Source	FullAccounts · bulk data Oct 2025	FullAccounts · bulk data Oct 2025

Derived from the latest filing

How the business works

Profit margin: 3%; Profit ÷ revenue.
Gross margin: 15.5%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: £123k; Revenue ÷ average employees.
Profit per employee: £3.6k; Profit ÷ average employees.
Cash conversion: −40.5%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 0.6%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 1.3%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 21.4%; Money owed by customers. Low = customers pay quickly.

Indirect — not revenue

Balance-sheet signals

Year-on-year changes in filed balance-sheet items. They can hint at momentum (or investment) but are not revenue or profit and must not be read as such.

Net assets: ▲30%; Now £6.2m
Cash at bank: ▲8%; Now £1m
Headcount: ▼23%; Now 392
Deferred income: ▼53%; Now £629k
Fixed assets: ▲0%; Now £296k

Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.

Corporate ownership

Group structure

Ownership chain

Mii Trustee Limitedultimate parent75–100%
Mii Engineering Limitedthis company

Bands show the share of ownership each company holds in the one below it.

From the Persons with Significant Control register (corporate controllers only).

Same industry, similar size

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Industry benchmarks →

Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Jan 2025 (profit £1.4m), from the Companies House accounts bulk data published Oct 2025. Spotted an error? Request a correction.

Updated from Companies House on 14 Oct 2026

Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.